Super Sprouter 50-Cell Square Insert Tray - 10in x 20in - with Holes

Super Sprouter 50-Cell Insert Trays for Cuttings and Seed Starting

The Super Sprouter 50-Cell Square Insert Tray is designed to fit snugly in any standard 10in x 20in propagation flat, accommodating coco plugs, regular soil, and soilless mixes for both seed starting and cutting propagation. The square cell geometry supports consistent plug formation and easy transplanting, while the drilled holes in every cell promote drainage and root development. Super Sprouter states this insert is built heavier-duty than competing insert trays on the market.

Key Features & Benefits

• 50 Square Cells with Holes: Individual drain holes in every cell help prevent waterlogging and support root development.
• Manufacturer-Stated Heavier-Duty Build: Super Sprouter states this insert uses thicker material and construction than many competing insert trays.
• Fits All Standard 10in x 20in Propagation Flats: Engineered to fit snugly in a standard 1020 tray without gaps or movement during handling.
• Compatible with Coco Plugs, Soil, and Soilless Media: A versatile cell design works with common propagation media for seeds and cuttings.
• Insert Dimensions: 19.7in L x 9.6in W x 1.6in D, fitting the standard 1020 footprint with clearance for smooth removal and replacement.

Who Should Use This

Clone propagators, seed starters, and greenhouse growers who use Super Sprouter 1020 tray systems and want a durable insert. Suitable for both home and commercial propagation applications.

Compatibility

Fits all standard 10in x 20in (1020) propagation trays, including Super Sprouter standard and Quad Thick trays, and is compatible with Super Sprouter humidity domes. Works with coco plugs, Grodan stonewool starter plugs, peat mixes, and soilless media.

About Super Sprouter

Super Sprouter is a Hawthorne Gardening Company brand, now under Vireo Growth, focused on clone and seedling propagation hardware.

Frequently Asked Questions

What media can I use with this insert tray?

The insert is compatible with coconut coir plugs, Grodan stonewool (rock wool) starter plugs, and regular seed-starting soil. Most other common soilless propagation mixes work as well, for both seeds and cuttings.

How does this insert compare to standard competing insert trays?

Super Sprouter states this insert is built heavier-duty than most competing products, with thicker walls meant to resist cracking and deformation over repeated use and cleaning cycles. This is a manufacturer claim rather than an independently tested measurement.

Does each cell have a drainage hole?

Yes. Every cell has an individual drainage hole to let excess water drain freely, which helps keep the root zone in good condition for germination and rooting.

When should I choose the 50-cell size over a different cell count?

Choose the 50-cell size when its individual cell volume matches your plug size and crop density needs. Super Sprouter offers both 72-cell and 50-cell inserts on the same 10in x 20in footprint, so you can match cell count to your propagation approach without changing the outer tray.